Depends what sort of look you want David, a sticker is always going to look like a sticker, could dome it so it's a bit more up market but it will still look like a sticker. I think engraving & then infilling with paint would give a far better finish, would last better but at an increased cost in time if nothing else.

Oh & what's this " I've contacted a custom decal maker on ebay" all about ???? Am I not good enough for you lol